Originally Posted by bmcer

I'd like to know if and how FD auto-trim has been implemented with the eTap system. Or is SRAM still relying on their "yaw" technology to deal with that.

Originally Posted by SRAM

SRAM RED ETAP Front Derailleur

SRAM YAW™ technology changed front shifting forever, eliminating the need for trim. The SRAM RED eTap Front Derailleur makes a good thing better by executing front shifts confidently and quickly over our proprietary wireless communication protocol. While the eTap shifter optimizes Yaw™ shifts as needed throughout the gear range with no need for rider input. At 187g including battery, the SRAM RED eTap front derailleur maintains SRAM’s best-in-class weight title.